org.apache.wicket.markup.parser.filter
Class HeadForceTagIdHandler

java.lang.Object
  org.apache.wicket.markup.parser.AbstractMarkupFilter
      org.apache.wicket.markup.parser.filter.HeadForceTagIdHandler

All Implemented Interfaces:

IMarkupFilter

public class HeadForceTagIdHandler
extends AbstractMarkupFilter

Handler that sets unique tag id for every inline script and style element in <wicket:head>, unless the element already has one.
This is needed to be able to detect multiple ajax header contribution. Tags that are not inline (stript with src attribute set and link with href attribute set) do not require id, because the detection is done by comparing URLs.

Tags with wicket:id are not processed. To setOutputWicketId(true) on attached component is developer's responsibility. FIXME: Really? And if so, document properly

Author:

Matej Knopp

Constructor Summary

HeadForceTagIdHandler(java.lang.Class<?> markupFileClass)
Construct.

Method Summary

protected MarkupElement

onComponentTag(ComponentTag tag) Invoked when a ComponentTag was found.

Methods inherited from class org.apache.wicket.markup.parser.AbstractMarkupFilter

getNextFilter, nextElement, onSpecialTag, postProcess, setNextFilter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HeadForceTagIdHandler

public HeadForceTagIdHandler(java.lang.Class<?> markupFileClass)

Construct.

Parameters:

markupFileClass - Used to generated the a common prefix for the id

Method Detail

onComponentTag

protected final MarkupElement onComponentTag(ComponentTag tag)
                                      throws java.text.ParseException

Description copied from class: AbstractMarkupFilter

Invoked when a ComponentTag was found.

By default this method is also called for WicketTags.

Specified by:

onComponentTag in class AbstractMarkupFilter

Returns:

Usually the same as the tag attribute

Throws:

java.text.ParseException